[blue68f100]

If your array consisted of 4 drives, you will able to remove the failed drive. On all RAID5 array you are only allowed to loose 1 hd. If you loose 2 all data is lost. The array will display broken instead of degraded.

If it's hung on this 5% mark, I suspect one of the other HD is Toast.

If you have spinrite I would start testing each drive to locate which one. If all test good, which I suspect not, confirm you have th jumpers set corectly. Should be Master or Single Drive. Yet others say CS will work, it all depends on the hardware rev.

Now if it gets through the check, It has been reported it may take hours before the array is mounted where you can access it. You do not normally want to be rebooting during these checks it just prolongs the process if not corrupting the HD.